Flying ops quiz

1. Carburettor heat is provided to combat icing within the carburettor and induction system and directs heated air into the carburettor inlet. The alternate air control is:

1. usually provided on fuel-injected engines and offers an alternative source of air that is not prone to obstruction by either a filter or airframe icing
2. usually provided on fuel-injected engines and serves exactly the same function as carburettor heat on an engine fitted with a carburettor
3. provided to select filtered air in dusty conditions
4. provided as a second source of static air to the pressure instruments.

2. Buys Ballot’s law states for the southern hemisphere that if you stand with your back to the wind, the low-pressure area will be:

1. on your left
2. on your right
3. behind you
4. in front of you.

3. A straight track line drawn on a WAC chart is actually:

1. a rhumb line track which is the shortest distance
2. a great circle track which has a constant angle with the meridians
3. a rhumb line track that theoretically requires a constant change of heading to follow it
4. a great circle track that theoretically requires a constant change of heading to follow it.

4. In a forecast, cloud cover described as scattered (SCT) and broken (BKN) means:

1. 1–2 OKTAS and 3–4 OKTAS respectively
2. 3–4 OKTAS and 5-7 OKTAS respectively
3. 1–2 OKTAS and 5–7 OKTAS respectively
4. 3–4 OKTAS and 4–5 OKTAS respectively.

5. During a pre-flight engine run-up, if the engine RPM increases when carburettor heat is selected, this:

1. is normal on any aircraft
2. will normally happen on particularly hot days
3. might indicate a partially blocked air filter
4. indicates that the ignition timing is too far advanced.

6. Diethylene glycol monomethyl ether is used in aviation as:

1. a fuel additive used to inhibit ice formation in fuel
2. a coolant in liquid-cooled engines
3. an ice inhibitor applied to external aerofoil surfaces
4. a cleaner for acrylic windows.

7. The pumping energy for an ejector pump in a fuel system is derived from:

1. compressor bleed air
2. ram air
3. the output of the submerged boost pump before the fuel reaches the main engine-driven pump
4. returned fuel from the engine-driven pump.

8. The declared summer density altitude:

1. provides a conservative means of calculating aircraft performance at a given location by using data published in a CAO
2. is the worst-case density altitude as calculated seasonally by the Bureau of Meteorology for each forecast area
3. is the worst-case density altitude at a particular aerodrome on a given day as calculated from the area forecast
4. is the worst-case density at a particular aerodrome on a given day as calculated from the terminal area forecast.

9. If, during a daily inspection, you find that a considerable quantity of water has accumulated in the rudder, the immediate airworthiness consideration is that:

1. a drain hole is probably blocked but there are no other airworthiness considerations
2. the water will alter the centre of gravity of the rudder and potentially increase the tendency for flutter
3. the water will move the centre of gravity of the rudder forward
4. the water will move the centre of gravity of the aircraft forward.

10. One potential hazard of making a landing approach over trees is:

1. it is extremely common for pilots to underestimate the height of dead tree branches
2. it is extremely common for pilots to overestimate the height of dead tree branches
3. trees can cause an updraft immediately downwind
4. trees can cause a downdraft immediately upwind.

Quiz answers

1 (a)

2 (b)

3 (d)

4 (b)

5 (c)

6 (a)

7 (d)

8 (a)

9 (b)

10 (a)